A New Electrolytic Capacitor-less LED Driver with Coupled-Inductor

被引：0
|
作者：
Cao, Lingling [1 ]
Zhu, Yichen [1 ]
Wu, Hao [2 ]
机构：
[1] Harbin Inst Technol, Sch Mech Engn & Automat, Shenzhen, Peoples R China
[2] BYD Co Ltd, Shenzhen, Peoples R China
来源：
2020 THIRTY-FIFTH ANNUAL IEEE APPLIED POWER ELECTRONICS CONFERENCE AND EXPOSITION (APEC 2020) | 2020年
关键词：
electrolytic capacitor; light emitting diode (LED) driver; power factor correction; coupled inductor; POWER-FACTOR CORRECTION; FLICKER-FREE; SINGLE-INDUCTOR; OUTPUT CURRENT;
D O I：
10.1109/apec39645.2020.9124527
中图分类号：
TE [石油、天然气工业]; TK [能源与动力工程];
学科分类号：
0807 ; 0820 ;
摘要：
Due to the use of electrolytic capacitor, the life span and operating temperature range of traditional light emitting diode (LED) drivers are limited. In order to solve these problems, many researchers focus on electrolytic capacitor-less design. In this paper, a new electrolytic capacitor-less LED driver with power factor correction (PFC) function is proposed. By using a coupled inductor, a single-stage topology with optimized energy-flow-path and higher efficiency is proposed. With this new topology, electrolytic capacitor can be replaced by film capacitor with lower capacitance value and longer lifetime so that the life span of the LED driver can be prolonged. Simulation results are presented to verify the proposed design.
引用
收藏
页码：1537 / 1543
页数：7
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